import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/User.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'


Vue.use(VueRouter)


const router = new VueRouter({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    {
      path: '/Home', component: Home, redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users },
        { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Cate },
        { path: '/params', component: Params },
        { path: '/goods', component: GoodsList },
        { path: '/goods/add', component: Add },
        { path: '/orders', component: Order },
        { path: '/reports', component: Report }
      ]
    }
  ]
})



// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to：将要访问的路径  ，
  // from：从哪个路径跳转而来 ，
  // next：是一个函数，表示放行， next（）放行 ，next（'/login'）强制跳转指定地址

  if (to.path === '/login') return next();
  const token = window.sessionStorage.getItem('token')
  if (!token) return next('/login')
  next()
})

export default router